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Date:   Mon, 22 May 2023 18:12:26 -0700
From:   "Darrick J. Wong" <djwong@kernel.org>
To:     Christoph Hellwig <hch@lst.de>
Cc:     Matthew Wilcox <willy@infradead.org>, Jens Axboe <axboe@kernel.dk>,
        Xiubo Li <xiubli@redhat.com>,
        Ilya Dryomov <idryomov@gmail.com>,
        Alexander Viro <viro@zeniv.linux.org.uk>,
        Christian Brauner <brauner@kernel.org>,
        Theodore Ts'o <tytso@mit.edu>,
        Jaegeuk Kim <jaegeuk@kernel.org>, Chao Yu <chao@kernel.org>,
        Miklos Szeredi <miklos@szeredi.hu>,
        Andreas Gruenbacher <agruenba@redhat.com>,
        Trond Myklebust <trond.myklebust@hammerspace.com>,
        Anna Schumaker <anna@kernel.org>,
        Damien Le Moal <dlemoal@kernel.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        linux-block@vger.kernel.org, ceph-devel@vger.kernel.org,
        linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org,
        "open list:F2FS FILE SYSTEM" <linux-f2fs-devel@lists.sourceforge.net>,
        cluster-devel@redhat.com, linux-xfs@vger.kernel.org,
        linux-nfs@vger.kernel.org, linux-mm@kvack.org
Subject: Re: cleanup the filemap / direct I/O interaction
Message-ID: <20230523011226.GF11642@frogsfrogsfrogs>
References: <20230519093521.133226-1-hch@lst.de>
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On Fri, May 19, 2023 at 11:35:08AM +0200, Christoph Hellwig wrote:
> Hi all,
> 
> this series cleans up some of the generic write helper calling
> conventions and the page cache writeback / invalidation for
> direct I/O.  This is a spinoff from the no-bufferhead kernel
> project, for while we'll want to an use iomap based buffered
> write path in the block layer.

Heh.

For patches 3 and 8, I wonder if you could just get rid of
current->backing_dev_info?

For patches 2, 4-6, and 10:
Acked-by: Darrick J. Wong <djwong@kernel.org>

For patches 1, 7, and 9:
Reviewed-by: Darrick J. Wong <djwong@kernel.org>

The fuse patches I have no idea about. :/

--D

> diffstat:
>  block/fops.c            |   18 ----
>  fs/ceph/file.c          |    6 -
>  fs/direct-io.c          |   10 --
>  fs/ext4/file.c          |   12 ---
>  fs/f2fs/file.c          |    3 
>  fs/fuse/file.c          |   47 ++----------
>  fs/gfs2/file.c          |    7 -
>  fs/iomap/buffered-io.c  |   12 ++-
>  fs/iomap/direct-io.c    |   88 ++++++++--------------
>  fs/libfs.c              |   36 +++++++++
>  fs/nfs/file.c           |    6 -
>  fs/xfs/xfs_file.c       |    7 -
>  fs/zonefs/file.c        |    4 -
>  include/linux/fs.h      |    7 -
>  include/linux/pagemap.h |    4 +
>  mm/filemap.c            |  184 +++++++++++++++++++++---------------------------
>  16 files changed, 190 insertions(+), 261 deletions(-)